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Finding the Fourth Proportional to 292,125.46, 438,188.19 and 70,509.46

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Solution

The fourth proportional to 292,125.46, 438,188.19 and 70,509.46 is: 105,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,125.46 : 438,188.19 = 70,509.46 : x
  2. Step 2: Convert to fraction form
    292,125.46/438,188.19 = 70,509.46/x
  3. Step 3: Cross multiply
    292,125.46x = 438,188.19 × 70,509.46
  4. Step 4: Simplify right side
    292,125.46x = 30,896,411,295.40
  5. Step 5: Solve for x
    x = 30,896,411,295.40/292,125.46
  6. Step 6: Final answer
    x = 105,764.19

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.