Home / 282,806.02-390,274.92-155,482.50

Finding the Fourth Proportional to 282,806.02, 390,274.92 and 155,482.50

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Solution

The fourth proportional to 282,806.02, 390,274.92 and 155,482.50 is: 214,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,806.02 : 390,274.92 = 155,482.50 : x
  2. Step 2: Convert to fraction form
    282,806.02/390,274.92 = 155,482.50/x
  3. Step 3: Cross multiply
    282,806.02x = 390,274.92 × 155,482.50
  4. Step 4: Simplify right side
    282,806.02x = 60,680,920,248.90
  5. Step 5: Solve for x
    x = 60,680,920,248.90/282,806.02
  6. Step 6: Final answer
    x = 214,567.29

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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.