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Finding the Fourth Proportional to 369,165.60, 553,672.80 and 102,859.20

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Solution

The fourth proportional to 369,165.60, 553,672.80 and 102,859.20 is: 154,267.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,165.60 : 553,672.80 = 102,859.20 : x
  2. Step 2: Convert to fraction form
    369,165.60/553,672.80 = 102,859.20/x
  3. Step 3: Cross multiply
    369,165.60x = 553,672.80 × 102,859.20
  4. Step 4: Simplify right side
    369,165.60x = 56,950,341,269.76
  5. Step 5: Solve for x
    x = 56,950,341,269.76/369,165.60
  6. Step 6: Final answer
    x = 154,267.74

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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.