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Finding the Fourth Proportional to 468,280.34, 646,224.48 and 253,420.45

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Solution

The fourth proportional to 468,280.34, 646,224.48 and 253,420.45 is: 349,718.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,280.34 : 646,224.48 = 253,420.45 : x
  2. Step 2: Convert to fraction form
    468,280.34/646,224.48 = 253,420.45/x
  3. Step 3: Cross multiply
    468,280.34x = 646,224.48 × 253,420.45
  4. Step 4: Simplify right side
    468,280.34x = 163,766,496,907.06
  5. Step 5: Solve for x
    x = 163,766,496,907.06/468,280.34
  6. Step 6: Final answer
    x = 349,718.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.