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Finding the Fourth Proportional to 402,515.24, 555,477.52 and 230,432.52

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Solution

The fourth proportional to 402,515.24, 555,477.52 and 230,432.52 is: 318,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,515.24 : 555,477.52 = 230,432.52 : x
  2. Step 2: Convert to fraction form
    402,515.24/555,477.52 = 230,432.52/x
  3. Step 3: Cross multiply
    402,515.24x = 555,477.52 × 230,432.52
  4. Step 4: Simplify right side
    402,515.24x = 128,000,084,736.95
  5. Step 5: Solve for x
    x = 128,000,084,736.95/402,515.24
  6. Step 6: Final answer
    x = 318,000.59

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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.