Home / 286,739.60-429,518.10-168,051.20

Finding the Fourth Proportional to 286,739.60, 429,518.10 and 168,051.20

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Solution

The fourth proportional to 286,739.60, 429,518.10 and 168,051.20 is: 251,730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,739.60 : 429,518.10 = 168,051.20 : x
  2. Step 2: Convert to fraction form
    286,739.60/429,518.10 = 168,051.20/x
  3. Step 3: Cross multiply
    286,739.60x = 429,518.10 × 168,051.20
  4. Step 4: Simplify right side
    286,739.60x = 72,181,032,126.72
  5. Step 5: Solve for x
    x = 72,181,032,126.72/286,739.60
  6. Step 6: Final answer
    x = 251,730.25

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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.