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Finding the Fourth Proportional to 247,859.77, 342,045.29 and 140,429.59

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Solution

The fourth proportional to 247,859.77, 342,045.29 and 140,429.59 is: 193,792.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,859.77 : 342,045.29 = 140,429.59 : x
  2. Step 2: Convert to fraction form
    247,859.77/342,045.29 = 140,429.59/x
  3. Step 3: Cross multiply
    247,859.77x = 342,045.29 × 140,429.59
  4. Step 4: Simplify right side
    247,859.77x = 48,033,277,423.76
  5. Step 5: Solve for x
    x = 48,033,277,423.76/247,859.77
  6. Step 6: Final answer
    x = 193,792.15

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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.