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Finding the Fourth Proportional to 292,001.20, 438,001.80 and 290,032.90

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Solution

The fourth proportional to 292,001.20, 438,001.80 and 290,032.90 is: 435,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,001.20 : 438,001.80 = 290,032.90 : x
  2. Step 2: Convert to fraction form
    292,001.20/438,001.80 = 290,032.90/x
  3. Step 3: Cross multiply
    292,001.20x = 438,001.80 × 290,032.90
  4. Step 4: Simplify right side
    292,001.20x = 127,034,932,259.22
  5. Step 5: Solve for x
    x = 127,034,932,259.22/292,001.20
  6. Step 6: Final answer
    x = 435,049.35

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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.