Home / 487,657.20-731,485.80-238,825.20

Finding the Fourth Proportional to 487,657.20, 731,485.80 and 238,825.20

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Solution

The fourth proportional to 487,657.20, 731,485.80 and 238,825.20 is: 358,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,657.20 : 731,485.80 = 238,825.20 : x
  2. Step 2: Convert to fraction form
    487,657.20/731,485.80 = 238,825.20/x
  3. Step 3: Cross multiply
    487,657.20x = 731,485.80 × 238,825.20
  4. Step 4: Simplify right side
    487,657.20x = 174,697,242,482.16
  5. Step 5: Solve for x
    x = 174,697,242,482.16/487,657.20
  6. Step 6: Final answer
    x = 358,237.80

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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.