Home / 290,210.02-435,155.18-155,432.05

Finding the Fourth Proportional to 290,210.02, 435,155.18 and 155,432.05

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Solution

The fourth proportional to 290,210.02, 435,155.18 and 155,432.05 is: 233,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,210.02 : 435,155.18 = 155,432.05 : x
  2. Step 2: Convert to fraction form
    290,210.02/435,155.18 = 155,432.05/x
  3. Step 3: Cross multiply
    290,210.02x = 435,155.18 × 155,432.05
  4. Step 4: Simplify right side
    290,210.02x = 67,637,059,830.47
  5. Step 5: Solve for x
    x = 67,637,059,830.47/290,210.02
  6. Step 6: Final answer
    x = 233,062.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.