Home / 260,319.64-390,138.18-148,051.48

Finding the Fourth Proportional to 260,319.64, 390,138.18 and 148,051.48

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Solution

The fourth proportional to 260,319.64, 390,138.18 and 148,051.48 is: 221,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,319.64 : 390,138.18 = 148,051.48 : x
  2. Step 2: Convert to fraction form
    260,319.64/390,138.18 = 148,051.48/x
  3. Step 3: Cross multiply
    260,319.64x = 390,138.18 × 148,051.48
  4. Step 4: Simplify right side
    260,319.64x = 57,760,534,953.51
  5. Step 5: Solve for x
    x = 57,760,534,953.51/260,319.64
  6. Step 6: Final answer
    x = 221,883.12

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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.