Home / 283,413.28-391,128.02-156,088.84

Finding the Fourth Proportional to 283,413.28, 391,128.02 and 156,088.84

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Solution

The fourth proportional to 283,413.28, 391,128.02 and 156,088.84 is: 215,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,413.28 : 391,128.02 = 156,088.84 : x
  2. Step 2: Convert to fraction form
    283,413.28/391,128.02 = 156,088.84/x
  3. Step 3: Cross multiply
    283,413.28x = 391,128.02 × 156,088.84
  4. Step 4: Simplify right side
    283,413.28x = 61,050,718,933.30
  5. Step 5: Solve for x
    x = 61,050,718,933.30/283,413.28
  6. Step 6: Final answer
    x = 215,412.34

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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.