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Finding the Fourth Proportional to 371,833.31, 513,088.23 and 210,653.84

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Solution

The fourth proportional to 371,833.31, 513,088.23 and 210,653.84 is: 290,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,833.31 : 513,088.23 = 210,653.84 : x
  2. Step 2: Convert to fraction form
    371,833.31/513,088.23 = 210,653.84/x
  3. Step 3: Cross multiply
    371,833.31x = 513,088.23 × 210,653.84
  4. Step 4: Simplify right side
    371,833.31x = 108,084,003,342.86
  5. Step 5: Solve for x
    x = 108,084,003,342.86/371,833.31
  6. Step 6: Final answer
    x = 290,678.65

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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.