Home / 370,330.61-511,066.73-209,192.45

Finding the Fourth Proportional to 370,330.61, 511,066.73 and 209,192.45

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Solution

The fourth proportional to 370,330.61, 511,066.73 and 209,192.45 is: 288,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,330.61 : 511,066.73 = 209,192.45 : x
  2. Step 2: Convert to fraction form
    370,330.61/511,066.73 = 209,192.45/x
  3. Step 3: Cross multiply
    370,330.61x = 511,066.73 × 209,192.45
  4. Step 4: Simplify right side
    370,330.61x = 106,911,299,329.84
  5. Step 5: Solve for x
    x = 106,911,299,329.84/370,330.61
  6. Step 6: Final answer
    x = 288,691.50

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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.