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Finding the Fourth Proportional to 243,750.40, 365,625.60 and 77,555.20

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Solution

The fourth proportional to 243,750.40, 365,625.60 and 77,555.20 is: 116,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,750.40 : 365,625.60 = 77,555.20 : x
  2. Step 2: Convert to fraction form
    243,750.40/365,625.60 = 77,555.20/x
  3. Step 3: Cross multiply
    243,750.40x = 365,625.60 × 77,555.20
  4. Step 4: Simplify right side
    243,750.40x = 28,356,166,533.12
  5. Step 5: Solve for x
    x = 28,356,166,533.12/243,750.40
  6. Step 6: Final answer
    x = 116,332.80

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1.5x scale

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.