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Finding the Fourth Proportional to 516,386.34, 774,281.53 and 200,474.19

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Solution

The fourth proportional to 516,386.34, 774,281.53 and 200,474.19 is: 300,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,386.34 : 774,281.53 = 200,474.19 : x
  2. Step 2: Convert to fraction form
    516,386.34/774,281.53 = 200,474.19/x
  3. Step 3: Cross multiply
    516,386.34x = 774,281.53 × 200,474.19
  4. Step 4: Simplify right side
    516,386.34x = 155,223,462,809.30
  5. Step 5: Solve for x
    x = 155,223,462,809.30/516,386.34
  6. Step 6: Final answer
    x = 300,595.60

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1.5x scale

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.