Home / 380,257.13-570,368.38-127,518.19

Finding the Fourth Proportional to 380,257.13, 570,368.38 and 127,518.19

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Solution

The fourth proportional to 380,257.13, 570,368.38 and 127,518.19 is: 191,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,257.13 : 570,368.38 = 127,518.19 : x
  2. Step 2: Convert to fraction form
    380,257.13/570,368.38 = 127,518.19/x
  3. Step 3: Cross multiply
    380,257.13x = 570,368.38 × 127,518.19
  4. Step 4: Simplify right side
    380,257.13x = 72,732,343,450.83
  5. Step 5: Solve for x
    x = 72,732,343,450.83/380,257.13
  6. Step 6: Final answer
    x = 191,271.48

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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.