Home / 410,127.75-615,465-157,616.73

Finding the Fourth Proportional to 410,127.75, 615,465 and 157,616.73

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Solution

The fourth proportional to 410,127.75, 615,465 and 157,616.73 is: 236,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,127.75 : 615,465 = 157,616.73 : x
  2. Step 2: Convert to fraction form
    410,127.75/615,465 = 157,616.73/x
  3. Step 3: Cross multiply
    410,127.75x = 615,465 × 157,616.73
  4. Step 4: Simplify right side
    410,127.75x = 97,007,580,729.45
  5. Step 5: Solve for x
    x = 97,007,580,729.45/410,127.75
  6. Step 6: Final answer
    x = 236,530.16

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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.