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Finding the Fourth Proportional to 369,577.78, 510,018.58 and 199,813.12

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Solution

The fourth proportional to 369,577.78, 510,018.58 and 199,813.12 is: 275,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,577.78 : 510,018.58 = 199,813.12 : x
  2. Step 2: Convert to fraction form
    369,577.78/510,018.58 = 199,813.12/x
  3. Step 3: Cross multiply
    369,577.78x = 510,018.58 × 199,813.12
  4. Step 4: Simplify right side
    369,577.78x = 101,908,403,727.77
  5. Step 5: Solve for x
    x = 101,908,403,727.77/369,577.78
  6. Step 6: Final answer
    x = 275,742.78

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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.