Home / 328,136.40-492,207.08-117,776.16

Finding the Fourth Proportional to 328,136.40, 492,207.08 and 117,776.16

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Solution

The fourth proportional to 328,136.40, 492,207.08 and 117,776.16 is: 176,665.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,136.40 : 492,207.08 = 117,776.16 : x
  2. Step 2: Convert to fraction form
    328,136.40/492,207.08 = 117,776.16/x
  3. Step 3: Cross multiply
    328,136.40x = 492,207.08 × 117,776.16
  4. Step 4: Simplify right side
    328,136.40x = 57,970,259,807.21
  5. Step 5: Solve for x
    x = 57,970,259,807.21/328,136.40
  6. Step 6: Final answer
    x = 176,665.13

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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.