Home / 402,122.16-602,264.28-191,907.72

Finding the Fourth Proportional to 402,122.16, 602,264.28 and 191,907.72

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Solution

The fourth proportional to 402,122.16, 602,264.28 and 191,907.72 is: 287,423.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,122.16 : 602,264.28 = 191,907.72 : x
  2. Step 2: Convert to fraction form
    402,122.16/602,264.28 = 191,907.72/x
  3. Step 3: Cross multiply
    402,122.16x = 602,264.28 × 191,907.72
  4. Step 4: Simplify right side
    402,122.16x = 115,579,164,812.24
  5. Step 5: Solve for x
    x = 115,579,164,812.24/402,122.16
  6. Step 6: Final answer
    x = 287,423.02

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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.