Home / 355,815.44-490,945.02-212,547.50

Finding the Fourth Proportional to 355,815.44, 490,945.02 and 212,547.50

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Solution

The fourth proportional to 355,815.44, 490,945.02 and 212,547.50 is: 293,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,815.44 : 490,945.02 = 212,547.50 : x
  2. Step 2: Convert to fraction form
    355,815.44/490,945.02 = 212,547.50/x
  3. Step 3: Cross multiply
    355,815.44x = 490,945.02 × 212,547.50
  4. Step 4: Simplify right side
    355,815.44x = 104,349,136,638.45
  5. Step 5: Solve for x
    x = 104,349,136,638.45/355,815.44
  6. Step 6: Final answer
    x = 293,267.59

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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.