Home / 280,134.17-386,587.95-152,812.43

Finding the Fourth Proportional to 280,134.17, 386,587.95 and 152,812.43

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Solution

The fourth proportional to 280,134.17, 386,587.95 and 152,812.43 is: 210,882.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,134.17 : 386,587.95 = 152,812.43 : x
  2. Step 2: Convert to fraction form
    280,134.17/386,587.95 = 152,812.43/x
  3. Step 3: Cross multiply
    280,134.17x = 386,587.95 × 152,812.43
  4. Step 4: Simplify right side
    280,134.17x = 59,075,444,048.22
  5. Step 5: Solve for x
    x = 59,075,444,048.22/280,134.17
  6. Step 6: Final answer
    x = 210,882.68

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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.