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Finding the Fourth Proportional to 216,763.36, 299,032.40 and 140,307.08

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Solution

The fourth proportional to 216,763.36, 299,032.40 and 140,307.08 is: 193,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,763.36 : 299,032.40 = 140,307.08 : x
  2. Step 2: Convert to fraction form
    216,763.36/299,032.40 = 140,307.08/x
  3. Step 3: Cross multiply
    216,763.36x = 299,032.40 × 140,307.08
  4. Step 4: Simplify right side
    216,763.36x = 41,956,362,869.39
  5. Step 5: Solve for x
    x = 41,956,362,869.39/216,763.36
  6. Step 6: Final answer
    x = 193,558.37

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1.5x scale

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.