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Finding the Fourth Proportional to 279,018.80, 385,047.48 and 164,302.40

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Solution

The fourth proportional to 279,018.80, 385,047.48 and 164,302.40 is: 226,738.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,018.80 : 385,047.48 = 164,302.40 : x
  2. Step 2: Convert to fraction form
    279,018.80/385,047.48 = 164,302.40/x
  3. Step 3: Cross multiply
    279,018.80x = 385,047.48 × 164,302.40
  4. Step 4: Simplify right side
    279,018.80x = 63,264,225,077.95
  5. Step 5: Solve for x
    x = 63,264,225,077.95/279,018.80
  6. Step 6: Final answer
    x = 226,738.22

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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.