Home / 282,927.25-390,442.20-153,866.95

Finding the Fourth Proportional to 282,927.25, 390,442.20 and 153,866.95

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Solution

The fourth proportional to 282,927.25, 390,442.20 and 153,866.95 is: 212,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,927.25 : 390,442.20 = 153,866.95 : x
  2. Step 2: Convert to fraction form
    282,927.25/390,442.20 = 153,866.95/x
  3. Step 3: Cross multiply
    282,927.25x = 390,442.20 × 153,866.95
  4. Step 4: Simplify right side
    282,927.25x = 60,076,150,465.29
  5. Step 5: Solve for x
    x = 60,076,150,465.29/282,927.25
  6. Step 6: Final answer
    x = 212,337.80

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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.