Home / 282,757.02-390,207.45-153,695.42

Finding the Fourth Proportional to 282,757.02, 390,207.45 and 153,695.42

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Solution

The fourth proportional to 282,757.02, 390,207.45 and 153,695.42 is: 212,101.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,757.02 : 390,207.45 = 153,695.42 : x
  2. Step 2: Convert to fraction form
    282,757.02/390,207.45 = 153,695.42/x
  3. Step 3: Cross multiply
    282,757.02x = 390,207.45 × 153,695.42
  4. Step 4: Simplify right side
    282,757.02x = 59,973,095,963.84
  5. Step 5: Solve for x
    x = 59,973,095,963.84/282,757.02
  6. Step 6: Final answer
    x = 212,101.17

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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.