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Finding the Fourth Proportional to 380,288.76, 524,798.61 and 210,522.87

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Solution

The fourth proportional to 380,288.76, 524,798.61 and 210,522.87 is: 290,521.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,288.76 : 524,798.61 = 210,522.87 : x
  2. Step 2: Convert to fraction form
    380,288.76/524,798.61 = 210,522.87/x
  3. Step 3: Cross multiply
    380,288.76x = 524,798.61 × 210,522.87
  4. Step 4: Simplify right side
    380,288.76x = 110,482,109,549.21
  5. Step 5: Solve for x
    x = 110,482,109,549.21/380,288.76
  6. Step 6: Final answer
    x = 290,521.63

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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.