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Finding the Fourth Proportional to 369,655.20, 553,705.20 and 307,447.20

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Solution

The fourth proportional to 369,655.20, 553,705.20 and 307,447.20 is: 460,524.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,655.20 : 553,705.20 = 307,447.20 : x
  2. Step 2: Convert to fraction form
    369,655.20/553,705.20 = 307,447.20/x
  3. Step 3: Cross multiply
    369,655.20x = 553,705.20 × 307,447.20
  4. Step 4: Simplify right side
    369,655.20x = 170,235,113,365.44
  5. Step 5: Solve for x
    x = 170,235,113,365.44/369,655.20
  6. Step 6: Final answer
    x = 460,524.06

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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.