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Finding the Fourth Proportional to 292,501.32, 438,751.98 and 105,512.80

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Solution

The fourth proportional to 292,501.32, 438,751.98 and 105,512.80 is: 158,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,501.32 : 438,751.98 = 105,512.80 : x
  2. Step 2: Convert to fraction form
    292,501.32/438,751.98 = 105,512.80/x
  3. Step 3: Cross multiply
    292,501.32x = 438,751.98 × 105,512.80
  4. Step 4: Simplify right side
    292,501.32x = 46,293,949,915.34
  5. Step 5: Solve for x
    x = 46,293,949,915.34/292,501.32
  6. Step 6: Final answer
    x = 158,269.20

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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.