Home / 438,965.49-657,939.96-201,810.45

Finding the Fourth Proportional to 438,965.49, 657,939.96 and 201,810.45

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Solution

The fourth proportional to 438,965.49, 657,939.96 and 201,810.45 is: 302,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,965.49 : 657,939.96 = 201,810.45 : x
  2. Step 2: Convert to fraction form
    438,965.49/657,939.96 = 201,810.45/x
  3. Step 3: Cross multiply
    438,965.49x = 657,939.96 × 201,810.45
  4. Step 4: Simplify right side
    438,965.49x = 132,779,159,400.58
  5. Step 5: Solve for x
    x = 132,779,159,400.58/438,965.49
  6. Step 6: Final answer
    x = 302,482.00

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1.5x scale

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.