Home / 463,145.61-638,938.08-272,072.82

Finding the Fourth Proportional to 463,145.61, 638,938.08 and 272,072.82

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Solution

The fourth proportional to 463,145.61, 638,938.08 and 272,072.82 is: 375,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,145.61 : 638,938.08 = 272,072.82 : x
  2. Step 2: Convert to fraction form
    463,145.61/638,938.08 = 272,072.82/x
  3. Step 3: Cross multiply
    463,145.61x = 638,938.08 × 272,072.82
  4. Step 4: Simplify right side
    463,145.61x = 173,837,685,230.99
  5. Step 5: Solve for x
    x = 173,837,685,230.99/463,145.61
  6. Step 6: Final answer
    x = 375,341.32

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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.