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Finding the Fourth Proportional to 370,345.79, 511,075.61 and 207,002.07

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Solution

The fourth proportional to 370,345.79, 511,075.61 and 207,002.07 is: 285,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,345.79 : 511,075.61 = 207,002.07 : x
  2. Step 2: Convert to fraction form
    370,345.79/511,075.61 = 207,002.07/x
  3. Step 3: Cross multiply
    370,345.79x = 511,075.61 × 207,002.07
  4. Step 4: Simplify right side
    370,345.79x = 105,793,708,161.50
  5. Step 5: Solve for x
    x = 105,793,708,161.50/370,345.79
  6. Step 6: Final answer
    x = 285,661.97

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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.