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Finding the Fourth Proportional to 292,032.20, 438,048.30 and 70,416.20

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Solution

The fourth proportional to 292,032.20, 438,048.30 and 70,416.20 is: 105,624.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,032.20 : 438,048.30 = 70,416.20 : x
  2. Step 2: Convert to fraction form
    292,032.20/438,048.30 = 70,416.20/x
  3. Step 3: Cross multiply
    292,032.20x = 438,048.30 × 70,416.20
  4. Step 4: Simplify right side
    292,032.20x = 30,845,696,702.46
  5. Step 5: Solve for x
    x = 30,845,696,702.46/292,032.20
  6. Step 6: Final answer
    x = 105,624.30

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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.