Home / 388,975.64-583,411.62-108,521.24

Finding the Fourth Proportional to 388,975.64, 583,411.62 and 108,521.24

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Solution

The fourth proportional to 388,975.64, 583,411.62 and 108,521.24 is: 162,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,975.64 : 583,411.62 = 108,521.24 : x
  2. Step 2: Convert to fraction form
    388,975.64/583,411.62 = 108,521.24/x
  3. Step 3: Cross multiply
    388,975.64x = 583,411.62 × 108,521.24
  4. Step 4: Simplify right side
    388,975.64x = 63,312,552,432.81
  5. Step 5: Solve for x
    x = 63,312,552,432.81/388,975.64
  6. Step 6: Final answer
    x = 162,767.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.