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Finding the Fourth Proportional to 340,818.66, 470,332.89 and 187,862.72

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Solution

The fourth proportional to 340,818.66, 470,332.89 and 187,862.72 is: 259,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,818.66 : 470,332.89 = 187,862.72 : x
  2. Step 2: Convert to fraction form
    340,818.66/470,332.89 = 187,862.72/x
  3. Step 3: Cross multiply
    340,818.66x = 470,332.89 × 187,862.72
  4. Step 4: Simplify right side
    340,818.66x = 88,358,016,492.21
  5. Step 5: Solve for x
    x = 88,358,016,492.21/340,818.66
  6. Step 6: Final answer
    x = 259,252.28

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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.