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Finding the Fourth Proportional to 145,521.00, 218,281.55 and 65,465.45

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Solution

The fourth proportional to 145,521.00, 218,281.55 and 65,465.45 is: 98,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,521.00 : 218,281.55 = 65,465.45 : x
  2. Step 2: Convert to fraction form
    145,521.00/218,281.55 = 65,465.45/x
  3. Step 3: Cross multiply
    145,521.00x = 218,281.55 × 65,465.45
  4. Step 4: Simplify right side
    145,521.00x = 14,289,900,484.07
  5. Step 5: Solve for x
    x = 14,289,900,484.07/145,521.00
  6. Step 6: Final answer
    x = 98,198.20

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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.