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Finding the Fourth Proportional to 243,007.60, 364,511.40 and 136,719.40

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Solution

The fourth proportional to 243,007.60, 364,511.40 and 136,719.40 is: 205,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,007.60 : 364,511.40 = 136,719.40 : x
  2. Step 2: Convert to fraction form
    243,007.60/364,511.40 = 136,719.40/x
  3. Step 3: Cross multiply
    243,007.60x = 364,511.40 × 136,719.40
  4. Step 4: Simplify right side
    243,007.60x = 49,835,779,901.16
  5. Step 5: Solve for x
    x = 49,835,779,901.16/243,007.60
  6. Step 6: Final answer
    x = 205,079.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.