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Finding the Fourth Proportional to 357,055.52, 535,561.28 and 146,688

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Solution

The fourth proportional to 357,055.52, 535,561.28 and 146,688 is: 220,022.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,055.52 : 535,561.28 = 146,688 : x
  2. Step 2: Convert to fraction form
    357,055.52/535,561.28 = 146,688/x
  3. Step 3: Cross multiply
    357,055.52x = 535,561.28 × 146,688
  4. Step 4: Simplify right side
    357,055.52x = 78,560,413,040.64
  5. Step 5: Solve for x
    x = 78,560,413,040.64/357,055.52
  6. Step 6: Final answer
    x = 220,022.96

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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.