Home / 279,159.28-385,277.16-158,344.36

Finding the Fourth Proportional to 279,159.28, 385,277.16 and 158,344.36

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Solution

The fourth proportional to 279,159.28, 385,277.16 and 158,344.36 is: 218,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,159.28 : 385,277.16 = 158,344.36 : x
  2. Step 2: Convert to fraction form
    279,159.28/385,277.16 = 158,344.36/x
  3. Step 3: Cross multiply
    279,159.28x = 385,277.16 × 158,344.36
  4. Step 4: Simplify right side
    279,159.28x = 61,006,465,322.82
  5. Step 5: Solve for x
    x = 61,006,465,322.82/279,159.28
  6. Step 6: Final answer
    x = 218,536.40

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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.