Home / 316,977.47-437,428-173,737.07

Finding the Fourth Proportional to 316,977.47, 437,428 and 173,737.07

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Solution

The fourth proportional to 316,977.47, 437,428 and 173,737.07 is: 239,756.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,977.47 : 437,428 = 173,737.07 : x
  2. Step 2: Convert to fraction form
    316,977.47/437,428 = 173,737.07/x
  3. Step 3: Cross multiply
    316,977.47x = 437,428 × 173,737.07
  4. Step 4: Simplify right side
    316,977.47x = 75,997,459,055.96
  5. Step 5: Solve for x
    x = 75,997,459,055.96/316,977.47
  6. Step 6: Final answer
    x = 239,756.66

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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.