Home / 423,064.02-634,598.19-142,583.70

Finding the Fourth Proportional to 423,064.02, 634,598.19 and 142,583.70

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Solution

The fourth proportional to 423,064.02, 634,598.19 and 142,583.70 is: 213,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,064.02 : 634,598.19 = 142,583.70 : x
  2. Step 2: Convert to fraction form
    423,064.02/634,598.19 = 142,583.70/x
  3. Step 3: Cross multiply
    423,064.02x = 634,598.19 × 142,583.70
  4. Step 4: Simplify right side
    423,064.02x = 90,483,357,943.50
  5. Step 5: Solve for x
    x = 90,483,357,943.50/423,064.02
  6. Step 6: Final answer
    x = 213,876.28

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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.