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Finding the Fourth Proportional to 477,099.15, 715,537.95 and 140,049.28

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Solution

The fourth proportional to 477,099.15, 715,537.95 and 140,049.28 is: 210,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,099.15 : 715,537.95 = 140,049.28 : x
  2. Step 2: Convert to fraction form
    477,099.15/715,537.95 = 140,049.28/x
  3. Step 3: Cross multiply
    477,099.15x = 715,537.95 × 140,049.28
  4. Step 4: Simplify right side
    477,099.15x = 100,210,574,710.18
  5. Step 5: Solve for x
    x = 100,210,574,710.18/477,099.15
  6. Step 6: Final answer
    x = 210,041.40

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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.