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Finding the Fourth Proportional to 145,797.30, 218,663.15 and 52,303.05

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Solution

The fourth proportional to 145,797.30, 218,663.15 and 52,303.05 is: 78,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,797.30 : 218,663.15 = 52,303.05 : x
  2. Step 2: Convert to fraction form
    145,797.30/218,663.15 = 52,303.05/x
  3. Step 3: Cross multiply
    145,797.30x = 218,663.15 × 52,303.05
  4. Step 4: Simplify right side
    145,797.30x = 11,436,749,406.09
  5. Step 5: Solve for x
    x = 11,436,749,406.09/145,797.30
  6. Step 6: Final answer
    x = 78,442.81

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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.