Home / 328,024.40-492,036.60-209,829.20

Finding the Fourth Proportional to 328,024.40, 492,036.60 and 209,829.20

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Solution

The fourth proportional to 328,024.40, 492,036.60 and 209,829.20 is: 314,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,024.40 : 492,036.60 = 209,829.20 : x
  2. Step 2: Convert to fraction form
    328,024.40/492,036.60 = 209,829.20/x
  3. Step 3: Cross multiply
    328,024.40x = 492,036.60 × 209,829.20
  4. Step 4: Simplify right side
    328,024.40x = 103,243,646,148.72
  5. Step 5: Solve for x
    x = 103,243,646,148.72/328,024.40
  6. Step 6: Final answer
    x = 314,743.80

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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.