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Finding the Fourth Proportional to 304,915.78, 457,792.61 and 155,256.63

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Solution

The fourth proportional to 304,915.78, 457,792.61 and 155,256.63 is: 233,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,915.78 : 457,792.61 = 155,256.63 : x
  2. Step 2: Convert to fraction form
    304,915.78/457,792.61 = 155,256.63/x
  3. Step 3: Cross multiply
    304,915.78x = 457,792.61 × 155,256.63
  4. Step 4: Simplify right side
    304,915.78x = 71,075,337,867.50
  5. Step 5: Solve for x
    x = 71,075,337,867.50/304,915.78
  6. Step 6: Final answer
    x = 233,098.26

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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.