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Finding the Fourth Proportional to 289,875.52, 400,032.30 and 175,138.18

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Solution

The fourth proportional to 289,875.52, 400,032.30 and 175,138.18 is: 241,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,875.52 : 400,032.30 = 175,138.18 : x
  2. Step 2: Convert to fraction form
    289,875.52/400,032.30 = 175,138.18/x
  3. Step 3: Cross multiply
    289,875.52x = 400,032.30 × 175,138.18
  4. Step 4: Simplify right side
    289,875.52x = 70,060,928,963.21
  5. Step 5: Solve for x
    x = 70,060,928,963.21/289,875.52
  6. Step 6: Final answer
    x = 241,693.15

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1.5x scale

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.