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Finding the Fourth Proportional to 328,235.60, 492,547.80 and 239,265.20

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Solution

The fourth proportional to 328,235.60, 492,547.80 and 239,265.20 is: 359,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,235.60 : 492,547.80 = 239,265.20 : x
  2. Step 2: Convert to fraction form
    328,235.60/492,547.80 = 239,265.20/x
  3. Step 3: Cross multiply
    328,235.60x = 492,547.80 × 239,265.20
  4. Step 4: Simplify right side
    328,235.60x = 117,849,547,876.56
  5. Step 5: Solve for x
    x = 117,849,547,876.56/328,235.60
  6. Step 6: Final answer
    x = 359,039.51

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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.