Home / 371,938.72-513,258.88-210,784.32

Finding the Fourth Proportional to 371,938.72, 513,258.88 and 210,784.32

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Solution

The fourth proportional to 371,938.72, 513,258.88 and 210,784.32 is: 290,872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,938.72 : 513,258.88 = 210,784.32 : x
  2. Step 2: Convert to fraction form
    371,938.72/513,258.88 = 210,784.32/x
  3. Step 3: Cross multiply
    371,938.72x = 513,258.88 × 210,784.32
  4. Step 4: Simplify right side
    371,938.72x = 108,186,924,004.76
  5. Step 5: Solve for x
    x = 108,186,924,004.76/371,938.72
  6. Step 6: Final answer
    x = 290,872.98

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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.