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Finding the Fourth Proportional to 255,030.40, 382,545.60 and 153,553.60

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Solution

The fourth proportional to 255,030.40, 382,545.60 and 153,553.60 is: 230,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,030.40 : 382,545.60 = 153,553.60 : x
  2. Step 2: Convert to fraction form
    255,030.40/382,545.60 = 153,553.60/x
  3. Step 3: Cross multiply
    255,030.40x = 382,545.60 × 153,553.60
  4. Step 4: Simplify right side
    255,030.40x = 58,741,254,044.16
  5. Step 5: Solve for x
    x = 58,741,254,044.16/255,030.40
  6. Step 6: Final answer
    x = 230,330.40

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1.5x scale

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.