Home / 282,711.11-390,144.35-153,649.59

Finding the Fourth Proportional to 282,711.11, 390,144.35 and 153,649.59

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Solution

The fourth proportional to 282,711.11, 390,144.35 and 153,649.59 is: 212,038.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,711.11 : 390,144.35 = 153,649.59 : x
  2. Step 2: Convert to fraction form
    282,711.11/390,144.35 = 153,649.59/x
  3. Step 3: Cross multiply
    282,711.11x = 390,144.35 × 153,649.59
  4. Step 4: Simplify right side
    282,711.11x = 59,945,519,802.44
  5. Step 5: Solve for x
    x = 59,945,519,802.44/282,711.11
  6. Step 6: Final answer
    x = 212,038.07

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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.