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Finding the Fourth Proportional to 370,527.40, 511,269.70 and 215,513.00

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Solution

The fourth proportional to 370,527.40, 511,269.70 and 215,513.00 is: 297,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,527.40 : 511,269.70 = 215,513.00 : x
  2. Step 2: Convert to fraction form
    370,527.40/511,269.70 = 215,513.00/x
  3. Step 3: Cross multiply
    370,527.40x = 511,269.70 × 215,513.00
  4. Step 4: Simplify right side
    370,527.40x = 110,185,264,038.24
  5. Step 5: Solve for x
    x = 110,185,264,038.24/370,527.40
  6. Step 6: Final answer
    x = 297,374.13

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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.