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Finding the Fourth Proportional to 477,977.96, 717,071.02 and 145,545.32

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Solution

The fourth proportional to 477,977.96, 717,071.02 and 145,545.32 is: 218,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,977.96 : 717,071.02 = 145,545.32 : x
  2. Step 2: Convert to fraction form
    477,977.96/717,071.02 = 145,545.32/x
  3. Step 3: Cross multiply
    477,977.96x = 717,071.02 × 145,545.32
  4. Step 4: Simplify right side
    477,977.96x = 104,366,331,068.63
  5. Step 5: Solve for x
    x = 104,366,331,068.63/477,977.96
  6. Step 6: Final answer
    x = 218,349.67

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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.