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Finding the Fourth Proportional to 518,335.74, 777,182.84 and 202,421.16

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Solution

The fourth proportional to 518,335.74, 777,182.84 and 202,421.16 is: 303,506.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,335.74 : 777,182.84 = 202,421.16 : x
  2. Step 2: Convert to fraction form
    518,335.74/777,182.84 = 202,421.16/x
  3. Step 3: Cross multiply
    518,335.74x = 777,182.84 × 202,421.16
  4. Step 4: Simplify right side
    518,335.74x = 157,318,249,596.51
  5. Step 5: Solve for x
    x = 157,318,249,596.51/518,335.74
  6. Step 6: Final answer
    x = 303,506.47

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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.