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Finding the Fourth Proportional to 243,798.40, 365,697.60 and 155,443.60

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Solution

The fourth proportional to 243,798.40, 365,697.60 and 155,443.60 is: 233,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,798.40 : 365,697.60 = 155,443.60 : x
  2. Step 2: Convert to fraction form
    243,798.40/365,697.60 = 155,443.60/x
  3. Step 3: Cross multiply
    243,798.40x = 365,697.60 × 155,443.60
  4. Step 4: Simplify right side
    243,798.40x = 56,845,351,455.36
  5. Step 5: Solve for x
    x = 56,845,351,455.36/243,798.40
  6. Step 6: Final answer
    x = 233,165.40

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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.