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Finding the Fourth Proportional to 368,490.24, 508,510.56 and 207,345.21

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Solution

The fourth proportional to 368,490.24, 508,510.56 and 207,345.21 is: 286,133.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,490.24 : 508,510.56 = 207,345.21 : x
  2. Step 2: Convert to fraction form
    368,490.24/508,510.56 = 207,345.21/x
  3. Step 3: Cross multiply
    368,490.24x = 508,510.56 × 207,345.21
  4. Step 4: Simplify right side
    368,490.24x = 105,437,228,850.42
  5. Step 5: Solve for x
    x = 105,437,228,850.42/368,490.24
  6. Step 6: Final answer
    x = 286,133.03

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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.