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Finding the Fourth Proportional to 370,646.79, 511,501.44 and 209,502.46

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Solution

The fourth proportional to 370,646.79, 511,501.44 and 209,502.46 is: 289,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,646.79 : 511,501.44 = 209,502.46 : x
  2. Step 2: Convert to fraction form
    370,646.79/511,501.44 = 209,502.46/x
  3. Step 3: Cross multiply
    370,646.79x = 511,501.44 × 209,502.46
  4. Step 4: Simplify right side
    370,646.79x = 107,160,806,368.52
  5. Step 5: Solve for x
    x = 107,160,806,368.52/370,646.79
  6. Step 6: Final answer
    x = 289,118.40

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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.