Home / 402,443.07-555,140.17-251,277.63

Finding the Fourth Proportional to 402,443.07, 555,140.17 and 251,277.63

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Solution

The fourth proportional to 402,443.07, 555,140.17 and 251,277.63 is: 346,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,443.07 : 555,140.17 = 251,277.63 : x
  2. Step 2: Convert to fraction form
    402,443.07/555,140.17 = 251,277.63/x
  3. Step 3: Cross multiply
    402,443.07x = 555,140.17 × 251,277.63
  4. Step 4: Simplify right side
    402,443.07x = 139,494,306,235.40
  5. Step 5: Solve for x
    x = 139,494,306,235.40/402,443.07
  6. Step 6: Final answer
    x = 346,618.73

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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.