Home / 283,050.33-390,603.92-155,728.05

Finding the Fourth Proportional to 283,050.33, 390,603.92 and 155,728.05

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Solution

The fourth proportional to 283,050.33, 390,603.92 and 155,728.05 is: 214,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,050.33 : 390,603.92 = 155,728.05 : x
  2. Step 2: Convert to fraction form
    283,050.33/390,603.92 = 155,728.05/x
  3. Step 3: Cross multiply
    283,050.33x = 390,603.92 × 155,728.05
  4. Step 4: Simplify right side
    283,050.33x = 60,827,986,005.32
  5. Step 5: Solve for x
    x = 60,827,986,005.32/283,050.33
  6. Step 6: Final answer
    x = 214,901.66

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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.