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Finding the Fourth Proportional to 340,508.61, 469,897.61 and 187,543.76

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Solution

The fourth proportional to 340,508.61, 469,897.61 and 187,543.76 is: 258,808.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,508.61 : 469,897.61 = 187,543.76 : x
  2. Step 2: Convert to fraction form
    340,508.61/469,897.61 = 187,543.76/x
  3. Step 3: Cross multiply
    340,508.61x = 469,897.61 × 187,543.76
  4. Step 4: Simplify right side
    340,508.61x = 88,126,361,307.21
  5. Step 5: Solve for x
    x = 88,126,361,307.21/340,508.61
  6. Step 6: Final answer
    x = 258,808.03

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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.