Home / 248,014.36-342,258.40-137,631.89

Finding the Fourth Proportional to 248,014.36, 342,258.40 and 137,631.89

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Solution

The fourth proportional to 248,014.36, 342,258.40 and 137,631.89 is: 189,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,014.36 : 342,258.40 = 137,631.89 : x
  2. Step 2: Convert to fraction form
    248,014.36/342,258.40 = 137,631.89/x
  3. Step 3: Cross multiply
    248,014.36x = 342,258.40 × 137,631.89
  4. Step 4: Simplify right side
    248,014.36x = 47,105,671,488.06
  5. Step 5: Solve for x
    x = 47,105,671,488.06/248,014.36
  6. Step 6: Final answer
    x = 189,931.23

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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.