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Finding the Fourth Proportional to 374,389.88, 516,598.31 and 213,248.08

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Solution

The fourth proportional to 374,389.88, 516,598.31 and 213,248.08 is: 294,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,389.88 : 516,598.31 = 213,248.08 : x
  2. Step 2: Convert to fraction form
    374,389.88/516,598.31 = 213,248.08/x
  3. Step 3: Cross multiply
    374,389.88x = 516,598.31 × 213,248.08
  4. Step 4: Simplify right side
    374,389.88x = 110,163,594,089.51
  5. Step 5: Solve for x
    x = 110,163,594,089.51/374,389.88
  6. Step 6: Final answer
    x = 294,248.32

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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.