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Finding the Fourth Proportional to 326,073.40, 489,110.10 and 148,926.40

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Solution

The fourth proportional to 326,073.40, 489,110.10 and 148,926.40 is: 223,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,073.40 : 489,110.10 = 148,926.40 : x
  2. Step 2: Convert to fraction form
    326,073.40/489,110.10 = 148,926.40/x
  3. Step 3: Cross multiply
    326,073.40x = 489,110.10 × 148,926.40
  4. Step 4: Simplify right side
    326,073.40x = 72,841,406,396.64
  5. Step 5: Solve for x
    x = 72,841,406,396.64/326,073.40
  6. Step 6: Final answer
    x = 223,389.60

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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.