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Finding the Fourth Proportional to 328,501.60, 492,752.40 and 141,513.10

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Solution

The fourth proportional to 328,501.60, 492,752.40 and 141,513.10 is: 212,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,501.60 : 492,752.40 = 141,513.10 : x
  2. Step 2: Convert to fraction form
    328,501.60/492,752.40 = 141,513.10/x
  3. Step 3: Cross multiply
    328,501.60x = 492,752.40 × 141,513.10
  4. Step 4: Simplify right side
    328,501.60x = 69,730,919,656.44
  5. Step 5: Solve for x
    x = 69,730,919,656.44/328,501.60
  6. Step 6: Final answer
    x = 212,269.65

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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.