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Finding the Fourth Proportional to 248,117.80, 372,176.70 and 153,423.40

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Solution

The fourth proportional to 248,117.80, 372,176.70 and 153,423.40 is: 230,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,117.80 : 372,176.70 = 153,423.40 : x
  2. Step 2: Convert to fraction form
    248,117.80/372,176.70 = 153,423.40/x
  3. Step 3: Cross multiply
    248,117.80x = 372,176.70 × 153,423.40
  4. Step 4: Simplify right side
    248,117.80x = 57,100,614,714.78
  5. Step 5: Solve for x
    x = 57,100,614,714.78/248,117.80
  6. Step 6: Final answer
    x = 230,135.10

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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.