Home / 282,752.40-390,222.02-155,451.98

Finding the Fourth Proportional to 282,752.40, 390,222.02 and 155,451.98

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Solution

The fourth proportional to 282,752.40, 390,222.02 and 155,451.98 is: 214,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,752.40 : 390,222.02 = 155,451.98 : x
  2. Step 2: Convert to fraction form
    282,752.40/390,222.02 = 155,451.98/x
  3. Step 3: Cross multiply
    282,752.40x = 390,222.02 × 155,451.98
  4. Step 4: Simplify right side
    282,752.40x = 60,660,785,648.60
  5. Step 5: Solve for x
    x = 60,660,785,648.60/282,752.40
  6. Step 6: Final answer
    x = 214,536.77

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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.