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Finding the Fourth Proportional to 270,159.42, 372,809.46 and 155,475

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Solution

The fourth proportional to 270,159.42, 372,809.46 and 155,475 is: 214,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,159.42 : 372,809.46 = 155,475 : x
  2. Step 2: Convert to fraction form
    270,159.42/372,809.46 = 155,475/x
  3. Step 3: Cross multiply
    270,159.42x = 372,809.46 × 155,475
  4. Step 4: Simplify right side
    270,159.42x = 57,962,550,793.50
  5. Step 5: Solve for x
    x = 57,962,550,793.50/270,159.42
  6. Step 6: Final answer
    x = 214,549.43

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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.