Home / 282,560.72-390,036.10-187,098.16

Finding the Fourth Proportional to 282,560.72, 390,036.10 and 187,098.16

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Solution

The fourth proportional to 282,560.72, 390,036.10 and 187,098.16 is: 258,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,560.72 : 390,036.10 = 187,098.16 : x
  2. Step 2: Convert to fraction form
    282,560.72/390,036.10 = 187,098.16/x
  3. Step 3: Cross multiply
    282,560.72x = 390,036.10 × 187,098.16
  4. Step 4: Simplify right side
    282,560.72x = 72,975,036,643.58
  5. Step 5: Solve for x
    x = 72,975,036,643.58/282,560.72
  6. Step 6: Final answer
    x = 258,263.20

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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.