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Finding the Fourth Proportional to 368,589.95, 508,459.03 and 253,669.07

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Solution

The fourth proportional to 368,589.95, 508,459.03 and 253,669.07 is: 349,929.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,589.95 : 508,459.03 = 253,669.07 : x
  2. Step 2: Convert to fraction form
    368,589.95/508,459.03 = 253,669.07/x
  3. Step 3: Cross multiply
    368,589.95x = 508,459.03 × 253,669.07
  4. Step 4: Simplify right side
    368,589.95x = 128,980,328,003.46
  5. Step 5: Solve for x
    x = 128,980,328,003.46/368,589.95
  6. Step 6: Final answer
    x = 349,929.05

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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.