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Finding the Fourth Proportional to 247,897.64, 342,101.40 and 134,720.40

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Solution

The fourth proportional to 247,897.64, 342,101.40 and 134,720.40 is: 185,915.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,897.64 : 342,101.40 = 134,720.40 : x
  2. Step 2: Convert to fraction form
    247,897.64/342,101.40 = 134,720.40/x
  3. Step 3: Cross multiply
    247,897.64x = 342,101.40 × 134,720.40
  4. Step 4: Simplify right side
    247,897.64x = 46,088,037,448.56
  5. Step 5: Solve for x
    x = 46,088,037,448.56/247,897.64
  6. Step 6: Final answer
    x = 185,915.60

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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.