Home / 328,546.02-492,822.95-128,960.40

Finding the Fourth Proportional to 328,546.02, 492,822.95 and 128,960.40

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Solution

The fourth proportional to 328,546.02, 492,822.95 and 128,960.40 is: 193,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,546.02 : 492,822.95 = 128,960.40 : x
  2. Step 2: Convert to fraction form
    328,546.02/492,822.95 = 128,960.40/x
  3. Step 3: Cross multiply
    328,546.02x = 492,822.95 × 128,960.40
  4. Step 4: Simplify right side
    328,546.02x = 63,554,644,116.38
  5. Step 5: Solve for x
    x = 63,554,644,116.38/328,546.02
  6. Step 6: Final answer
    x = 193,442.14

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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.