Home / 282,779.42-390,243.06-153,726.57

Finding the Fourth Proportional to 282,779.42, 390,243.06 and 153,726.57

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Solution

The fourth proportional to 282,779.42, 390,243.06 and 153,726.57 is: 212,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,779.42 : 390,243.06 = 153,726.57 : x
  2. Step 2: Convert to fraction form
    282,779.42/390,243.06 = 153,726.57/x
  3. Step 3: Cross multiply
    282,779.42x = 390,243.06 × 153,726.57
  4. Step 4: Simplify right side
    282,779.42x = 59,990,727,080.10
  5. Step 5: Solve for x
    x = 59,990,727,080.10/282,779.42
  6. Step 6: Final answer
    x = 212,146.73

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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.