Home / 279,254.88-385,369.98-151,931.04

Finding the Fourth Proportional to 279,254.88, 385,369.98 and 151,931.04

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Solution

The fourth proportional to 279,254.88, 385,369.98 and 151,931.04 is: 209,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,254.88 : 385,369.98 = 151,931.04 : x
  2. Step 2: Convert to fraction form
    279,254.88/385,369.98 = 151,931.04/x
  3. Step 3: Cross multiply
    279,254.88x = 385,369.98 × 151,931.04
  4. Step 4: Simplify right side
    279,254.88x = 58,549,661,846.18
  5. Step 5: Solve for x
    x = 58,549,661,846.18/279,254.88
  6. Step 6: Final answer
    x = 209,663.88

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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.