Home / 461,421.80-692,003.10-145,975.40

Finding the Fourth Proportional to 461,421.80, 692,003.10 and 145,975.40

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Solution

The fourth proportional to 461,421.80, 692,003.10 and 145,975.40 is: 218,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,421.80 : 692,003.10 = 145,975.40 : x
  2. Step 2: Convert to fraction form
    461,421.80/692,003.10 = 145,975.40/x
  3. Step 3: Cross multiply
    461,421.80x = 692,003.10 × 145,975.40
  4. Step 4: Simplify right side
    461,421.80x = 101,015,429,323.74
  5. Step 5: Solve for x
    x = 101,015,429,323.74/461,421.80
  6. Step 6: Final answer
    x = 218,922.10

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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.