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Finding the Fourth Proportional to 615,050.90, 922,248.30 and 259,663.40

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Solution

The fourth proportional to 615,050.90, 922,248.30 and 259,663.40 is: 389,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,050.90 : 922,248.30 = 259,663.40 : x
  2. Step 2: Convert to fraction form
    615,050.90/922,248.30 = 259,663.40/x
  3. Step 3: Cross multiply
    615,050.90x = 922,248.30 × 259,663.40
  4. Step 4: Simplify right side
    615,050.90x = 239,474,129,222.22
  5. Step 5: Solve for x
    x = 239,474,129,222.22/615,050.90
  6. Step 6: Final answer
    x = 389,356.60

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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.