Home / 402,023.72-555,052.32-249,225.20

Finding the Fourth Proportional to 402,023.72, 555,052.32 and 249,225.20

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Solution

The fourth proportional to 402,023.72, 555,052.32 and 249,225.20 is: 344,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,023.72 : 555,052.32 = 249,225.20 : x
  2. Step 2: Convert to fraction form
    402,023.72/555,052.32 = 249,225.20/x
  3. Step 3: Cross multiply
    402,023.72x = 555,052.32 × 249,225.20
  4. Step 4: Simplify right side
    402,023.72x = 138,333,025,462.46
  5. Step 5: Solve for x
    x = 138,333,025,462.46/402,023.72
  6. Step 6: Final answer
    x = 344,091.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.