Home / 380,369.18-524,925.87-210,603.32

Finding the Fourth Proportional to 380,369.18, 524,925.87 and 210,603.32

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Solution

The fourth proportional to 380,369.18, 524,925.87 and 210,603.32 is: 290,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,369.18 : 524,925.87 = 210,603.32 : x
  2. Step 2: Convert to fraction form
    380,369.18/524,925.87 = 210,603.32/x
  3. Step 3: Cross multiply
    380,369.18x = 524,925.87 × 210,603.32
  4. Step 4: Simplify right side
    380,369.18x = 110,551,130,975.89
  5. Step 5: Solve for x
    x = 110,551,130,975.89/380,369.18
  6. Step 6: Final answer
    x = 290,641.66

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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.