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Finding the Fourth Proportional to 279,370.64, 385,530.36 and 152,046.20

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Solution

The fourth proportional to 279,370.64, 385,530.36 and 152,046.20 is: 209,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,370.64 : 385,530.36 = 152,046.20 : x
  2. Step 2: Convert to fraction form
    279,370.64/385,530.36 = 152,046.20/x
  3. Step 3: Cross multiply
    279,370.64x = 385,530.36 × 152,046.20
  4. Step 4: Simplify right side
    279,370.64x = 58,618,426,222.63
  5. Step 5: Solve for x
    x = 58,618,426,222.63/279,370.64
  6. Step 6: Final answer
    x = 209,823.14

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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.