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Finding the Fourth Proportional to 315,341.55, 473,087.65 and 102,109.68

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Solution

The fourth proportional to 315,341.55, 473,087.65 and 102,109.68 is: 153,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,341.55 : 473,087.65 = 102,109.68 : x
  2. Step 2: Convert to fraction form
    315,341.55/473,087.65 = 102,109.68/x
  3. Step 3: Cross multiply
    315,341.55x = 473,087.65 × 102,109.68
  4. Step 4: Simplify right side
    315,341.55x = 48,306,828,553.45
  5. Step 5: Solve for x
    x = 48,306,828,553.45/315,341.55
  6. Step 6: Final answer
    x = 153,188.91

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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.